Combined burglar-alarm and door-check.



No. 635,595. Patented Oct. 24, I899.

W. H. REIFFJ BOMBINED BUBGLAR ALARM AND DOOR GNEGK;v

(Application filed Doc. 30, 1898.)

(No Model.)

l I c WIITNESSES: INVENTO/i' MMQLPLM NITED STATES "ATENT FFICE COMBINEDBURGLAR-ALARM AND DOOR-CHECK.

SPECIFICATION forming part of Letters Patent No. 635,595, dated October24, 1899. Application filed December 30, 1398. Serial No. 700,702. (Nomodel.)

To all whon't it may concern.-

Be it known that I, WILLIAM H. REIFF, a citizen of the United States,residing in the city and county of Philadelphia, in the State ofPennsylvania, have invented certain new and useful Improvements in aCombined Burglar-Alarm and Door-Check, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawings, forming a part of this specification.

The object of this invention is to providea simple and efficientburglar-alarm and doorstop device comprising in its construction abeveled or wedge-shaped base, means for retaining a cartridge therein,and means for automatically firing such cartridge, and thus sounding analarm, when the door is moved inward upon the base, which latter affordsan abutment for the door, as will be hereinafter particularly describedand claimed.

In the drawings, Figure 1 is a perspective View of the device as inactual use. Fig. 2 is a longitudinal vertical section thereof, on alarger scale, showing the hammer cooked and locked by the trigger. Fig.3 is a similar section showing the hammer released and shot against thecartridge. Fig. 4 is a plan of Fig. 3.

A is a hollow wedge-shaped base comprising two beveled side walls a, acorrespondin'gly-inclined top a, and a rear end wall a At the top of theincline is a horizontal portion a in which is formed, adjacent one ofthe side walls, a perforation a for the reception of a blank cartridgeB, which perforation extends entirely through the end of the base. Thetop of the base is provided in alinement with said perforation with alongitudinal slot a through which extends a lever O, constituting ahammer that is fulcrumed, as at e, on the side wall of the base. Theupper end of the lever is provided with a suitably-arranged firing-pin aand with a thumb-piece 0 while the lower end thereof is connected withthe side of the base by means of a strong retracting-spring a thetendency of which is to throw the upper arm of the lever toward thecartridge, and thus strike the firing-pin forcibly against the latter.

The hammer is held in its cocked position by means of a trigger D, whichcomprises a lever fulcrumed within the base at or near the apex thereof.This lever extends upwardly within the slot in the top of the base andis slightly bent or offset, as at 61, so as to lie laterally of thehammer-lever. The offset portion is slightly rounded on its upper edge,as at d, and is provided with a suitably-lo cated notch or recess (1 Therounded por tion is held normally against a laterally-proj ecting stud con the hammer-lever by means of a torsional spring 01 one end of whichis secured to the base, while the other or free end bears against theunder side of the trigger.

By the above-described construction it will be seen that when the hammeris cooked, as represented in Fig. 2, the stud on the hammer is inregister with the notch in the trig ger and is held thereby inopposition to the force of the spring 0 hen the parts are in thisposition, the upper edge of the trigger extends slightly above the topof the base. It will also be seen that if the device thus cocked be setadjacent the lower edge of a door, as illustrated in Fig. 1, such edgeupon the opening of the door will ride upon the opposing upper edge ofthe trigger and depress the latter in a manner to liberate the hammer,whereupon the upper end of the latter will be projected in a manner tostrike the firing-pin against and explode the cartridge in the end ofthe casing.

It will be observed that the beveled or wedgeshaped base will permit theopening of the door to a limited extent only, the same affording afixedand positive abutment for the door.

To obviate any liability of the device sliding inward when the door ispushed thereagain,st,I preferably provide on the under side of the base,at or near the point thereof, a depending teat or pin E, that isdesigned to be forced into the floor or carpet.

I claim as my invention 1. In a combined burglar-alarm and doorstop, awedge-shaped base having at its larger end a cartridge-retainer, aspring-controlled hammer pivoted in said base, a spring-controlledtrigger also pivoted therein and provided with means to hold the hammerretracted or cooked, the upper edgeof said trigger extending along andadjacent the upper edge of the base.

2. In a combined burglar-alarm and doorcheck, a wedge-shaped basecomprising beveled side Walls, an inclined top having at its rear aperforated portion and at its side edge a longitudinal slot, ahammer-lever pivoted to said base and extending through the slot, aspring to retract the lower arm of said 1ever, a stud on said lever, atrigger-lever pivoted to said base at or near the apex thereof andextending through and along the said slot, the upper edge of the latterlever being rounded near its free end and provided with a notch withwhich the said stud registers when the hammer is cooked, and a spring tomaintain the trigger-lever normally raised.

In testimony whereof I have hereunto affixed my signature in thepresence of two subscribing witnesses.

WILLIAM II. REIFF.

IVitnesses:

l ANDREW V. GRoUPE,

JOHN R. NOLAN.

